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Richard T. Curley
Richard T. Curley
Richard T. Curley
PLUMBING & HEATING
Heating problems... In Maynard Ma Installations, Replacements, and Repairs


Common Heating Questions in Maynard
Yes, and we know them well. Maynard’s mill-worker housing was built around the same era, and many still run on one-pipe steam. These systems rely on proper venting, clean boiler water, and correct pipe pitch. When they’re neglected, they bang, spit water from the air vents, and leave the farthest radiators cold. We tune steam systems so they run quiet and heat evenly — air vent replacement, main vent upgrades, and boiler water conditioning.
Carefully, and with the right equipment. Maynard basements — especially in the older homes near downtown — have ceilings under six feet and staircases you turn sideways to walk down. We’ve done hundreds of boiler replacements in tight basements. We use low-profile boilers when the space demands it, and we break down the old unit into sections to carry it out. The job takes a little longer than a wide-open basement, but it gets done right.
Not if it's set up correctly. Many Maynard homes started with radiators and had baseboard added when a kitchen or addition was renovated. The two run at different water temperatures — radiators can handle higher heat than baseboard — so the system needs to be balanced. If your baseboard rooms are slow to warm up while the radiator rooms roast, the balancing is off. We can fix that.Yes. Maynard's treated water carries chlorine that, over years, can accelerate wear on rubber seals, gaskets, and some internal boiler components. It's not dramatic, but it makes annual inspections more important. We check seals and gaskets on every service call. The chlorine also leaves a light scale in the heat exchanger that an annual flush removes.
If gas is available on your street — and in most of Maynard it is — the numbers usually favor switching. Gas is cheaper per BTU than oil in most years, and Maynard’s gas infrastructure is well-established.
That’s kettling — mineral scale inside the heat exchanger that traps water against the hot metal. The water boils too fast and makes a rumbling, percolating sound. It’s common in Maynard’s older boilers that haven’t been flushed in years. Left alone, it stresses the boiler and cuts efficiency. A descaling flush usually quiets it down. If it’s been years, we may need to do it in stages.
For the full scope of heating services across every Metrowest town we serve, see our heating system repair guide for Metrowest.
Need bathroom plumbing while we’re in the house? Our bathroom plumbing services in Maynard cover toilets, sinks, tubs, and showers in historic homes.
If your hot water is part of the heating problem, our water heater services in Maynard fit the right unit into the right space
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The Heating Business...
Richard T. Curley Plumbing and Heating has kept Maynard MA homes warm since 1980. We specialize in boiler repair, boiler replacement, radiant heat, baseboard systems, and circulator pump service. If your heat runs on hot water or steam, we handle it — and we know Maynard's older homes, tight basements, and municipal water inside and out.
We do not push new equipment when a repair will do the job. If your boiler can be fixed, we fix it. If it's time for a replacement, we'll give you a straight answer — no pressure, no scare tactics, no upsell.
Here at Richard T. Curley Plumbing and Heating, we are committed to same-day heating service for every Maynard resident. A cold mill house or a shivering cape on a January morning isn’t something you wait on.




Boiler Repair and Replacement...
Boiler Repair… A boiler that’s making noise, short-cycling, or leaving radiators lukewarm needs attention before it fails completely. We troubleshoot gas boilers, oil boilers, steam boilers, and high-efficiency condensing units across Maynard.
Common repairs we handle: failed circulator pumps, faulty zone valves, expansion tank failures, air-bound radiators, thermocouple replacements, and pressure switch issues. Maynard’s municipal water carries chlorine that can accelerate wear on internal boiler seals and gaskets over time — we check for that. Most repairs take one visit. We carry circulator pumps, zone valves, and common control parts on the truck so you’re not waiting on a second trip.
Boiler Replacement… When repair isn’t the smart money, we guide you toward the right replacement. Maynard homes range from historic mill-worker houses near downtown to mid-century capes and ranches to newer construction. Maynard basements are famously tight — low ceilings, narrow staircases, stone foundations in the oldest homes. We know how to work in them.
We size the boiler to your home’s actual heat loss — not a guess based on what was there before. For Maynard’s smaller homes, that often means a boiler smaller than the original, not larger. Oversized boilers short-cycle and waste fuel. Getting the sizing right matters, and we get it right.
- Weil-McLain
- Burnham
- Utica
- Buderus
Radiant Heat...
Radiant floor heat… is the most comfortable way to heat a home, and Maynard renovations are adding it — especially in kitchens and bathrooms where the original floor was coming up anyway. We install radiant tubing, manifold systems, and mixing valves. We also repair existing radiant: cold spots in the floor, a zone that won’t heat, or a manifold that’s leaking.
In Maynard’s older homes, adding radiant to a single room during a renovation is often the smartest approach — full-house radiant retrofits are harder when the floors are already in place. We tap into the existing boiler loop and run a separate zone with its own mixing valve so the floor runs at the lower temperature it needs.
BOILER CONTROLS...
- Installation
- Replacement
- Repair
- Honeywell Thermostats
- Honeywell Controls
- White Rogers Controls
- Resideo Controls
- McDonnell & Miller
- Watts Regulator
- Just a few brands.



Baseboard and Radiator Systems...
Baseboard Heat… Maynard homes with hot water baseboard know the sound of creaking copper as the heat comes up. When that sound stops — or when one room stays cold while the rest of the house is warm — something is wrong.
We bleed air from baseboard loops, replace stuck zone valves, and flush sediment from older systems. Maynard’s municipal water leaves fine sediment in older loops over the years — a system flush clears it. If a baseboard section is damaged or leaking, we replace it. We also add baseboard to finished basements — a common project in Maynard where below-grade square footage gets turned into usable living space.
Radiators… Maynard’s historic mill houses and early-1900s homes have cast-iron radiators that can last a century if maintained. We repair steam and hot water radiators, replace failing air vents on steam systems, and fix leaking radiator valves. A cold radiator in an otherwise warm house is almost always a simple fix — a stuck vent or a trapped air pocket.
In Maynard’s two-story mill houses, the original steam systems were often converted to hot water decades ago. When the conversion wasn’t done carefully, some radiators never heat evenly. We can rebalance the system so every room gets its share.
- Slant/Fin Baseboard
- Suntemp Baseboard
- Weil-McLain Cast Iron Baseboard
- Sunrad Cast Iron Radiator
- Installation
- Replacement
- Repair






Circulator Pumps and Zone Valves...
The circulator pump… The circulator pump is the heart of a hot water heating system. When it fails, nothing moves. Common signs: the boiler fires but the pipes stay cold, or you hear the pump humming louder than it should.
Zone valves… Control which part of the house gets heat. A stuck zone valve means one thermostat calls for heat and nothing happens — or worse, a zone that won’t shut off.
We replace Taco, Grundfos, Bell & Gossett, and Honeywell circulators and zone valves. Most are on the truck. In Maynard’s tight basements, replacing a circulator pump that’s wedged behind a boiler and under a low ceiling is a job that rewards experience. We’ve done it hundreds of times.
Expansion Tanks… Every hot water heating system has an expansion tank, and most Maynard homeowners never think about it until it fails. A waterlogged expansion tank causes the pressure relief valve to drip — and that dripping is the canary in the coal mine.
We test expansion tanks, repressurize bladder-type tanks when possible, and replace them when they’ve failed. In Maynard basements with low headroom, the expansion tank is often mounted right above the boiler where nobody checks it. A five-minute inspection once a year prevents a waterlogged tank from taking out the whole system.
- Taco Circulator Pumps
- Taco Zone Valves
- Grundfos Circulator Pumps
- Bell & Gossett Circulator Pumps
- Extrol Expansion Tanks
- Installation
- Replacement
- Repair
